S: (n) ray (any of the stiff bony spines in the fin of a fish)
S: (n) ray (cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins)
S: (v) radiate, ray (extend or spread outward from a center or focus or inward towards a center) "spokes radiate from the hub of the wheel"; "This plants radiate spines in all directions"